Improvement in middlings-purifiers



UNITED STATES PATENT OFFICE. IN f MORRIS SOWER, OF PRINCETON, ILLINOIS, ASSIGNOR 'IO SOWER BROTHERS, OF SAME PLACE.

IMPROVEMENT IN MlDDLlNGS-PURIFIERS,

Specification forming part of Letters Patent No. 146,844, dated January 27, 1874A; application filed July 19, 1873.

YTo all lwhom it may concern.-

Be it known that I, Mouais Sownn, of Princeton, in the county of Bureau and State of Illinois, have invented a new and usefulv Improvement in Middlings-Purier, of which the following is a specification:

Figure l is a vertical longitudinal section of my improved machine, taken through the line w w, Fig. 2. Fig. 2 is a vertical cross-section of the same, taken through the line g/ y, Fig. l.

Similar letters of reference indicate corresponding parts. l l' My invention has for its object 'to furnish an improved machine for purifying middlings by separating from them the light impurities, and which shall be simple in construction, convenient in use, and effective in operation. The `invention consists in the suspended clothframe, one or more, in. combination with the surrounding frame agitated by an eccentric or `other means, and in the arrangement of the spout, the expansion-chamber, and the fan` chamber, with respect to the hopper and the bolt-frames, as hereinafter fully described.

A is the frame of the machine, which is provided with a casing, B, the sides of which are made detachable, to give convenient access to the bolts, when desired. O is an'linclined frame, placed within the frame A, and which is made a little shorter than said frame, so that it may have a longitudinal movement. The inner and lower end of the frame O is supported byspring or flexible rods D, and its forward and higher end is supported by springs E. The outer end of the frame O forms a portion of the end casing of the machine. Fis a shaft, which revolves in bearings attached to the end part of the frame A, and to which motion maybe given by a belt or other convenient means. To the shaft F is attached an eccentric, G, which revolves in a keeper, H, attached to the end of the frame O, so that the frame O may be moved bythe said eccentricin one or both directions, the supportingsprings always bringing the said frame back promptly when released from the eccentric G. I is the frame to which the bolt-cloth is attached, and which is suspended within the frame C by the exiblestraps J, the upper y ends of which are secured to the sides of the box A B.

If desired, one, two, or more of the cloth frames I may be suspended one above the other, in which case `each upper frame should be about half the length of the next lower one.` In the drawings two of the frames I are shown. By this arrangement each movement of the frame C gives a sudden jar to the frame I,

which keeps 'the cloth clean without the use of brushes or other means that .would wear the cloth. Each of the frames I is supported by its own flexible straps J.`

K is the hopper, from which the middlings are fed to the cloth-,frame I by a roller or other suitable feed, and which is placed above the' upper end of the frame I. L is a spout, the open mouth of which'is placed just below the discharge-opening of the hopper K, and above the upper end of the cloth-frame I. The spout Y L leads into an expansion-chamber, M, from the lower part of which a short spout, N, leads out through the rear end of the box A B, and

which is provided with a trap or other door, O. From the chamber M an opening is formed y into the chamber P, in which the fan Q `is placed. The air to supply the fan Q passes in through the openings b1 b2 in the end'parts of the casing B, below the endsof the frames C I, through the openings b3 in the end of the casing B, below the spout N, and through the opening b4, in the;,end of the casing B, nearly opposite the discharge opening of the hopper K. The air from the openings b1 b2 passesl up through the bolt-cloth, the air from the openings b3 passes along above the bolt-cloth, and the air from the opening b4 passes through the middlings as they fall from the hopper K.

By this construction, the air drawn through thegmachine by the fan Q carries the light im-` purities with it. Any of the middlings 'that may pass through.. the spout. L with the air Hm bultingscreens I, suspended within and sion-chamber M, i'imrehamber l, and adr-opena independently thereof by means of straps J, ings b1 I)2 b3 b4, hopper K, frame C, and. screens 11s shown and described, to receive a succession I, substantially as herein shown and described. 0E sudden shocks from the reciprocating move- Y ment of the frame, as and for the purpose Vitnesses: specified. 'WESLEY J OTT,

2. The arrangement of the spout L, expzm- THEODOR COOK.

BIORRIS ,SOVER. 

